The siding offers Rollex's first "rollover"-style (folded-over) reinforced nailing hem, which effectively doubles the thickness of the vinyl around the fasteners for a secure installation. The vinyl itself is 0.044 inches (44 mils) thick, more than 25 per cent thicker than the Vinyl Siding Institute's requirement for certification.

Also new is a calibrated nail guide, laser imprinted along the hem, to help installers locate wall studs.

Manchester is available in three profiles: double-4", double- 41/2" Dutch lap, and double-5". The "legs" of the panel profiles project outwards 5/8-inch, providing rigidity for a straight appearance on the wall.